nora65
nora65
15.04.2020 • 
Mathematics

A lumber company is making boards that are 2777.0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 29 boards is made, and it is found that they have a mean of 2780.9 millimeters with a standard deviation of 12.0. Is there evidence at the 0.1 level that the boards are either too long or too short

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